Wire harness terminal and sealing structure thereof
By setting up a protective sleeve at the connection of the wiring harness terminals and injecting colloids, combined with the sealant layer, the problem of lack of sealing of traditional wiring harness terminals is solved, colloid saving and convenient replacement are achieved, and safety performance is improved.
Patent Information
- Application Number
- CN202420963148.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-05-07
AI Technical Summary
The connection of traditional wire harness terminals lacks sealing, which may cause water to enter the terminal, causing leakage short circuits and fire safety hazards. The conventional colloid filling method consumes too much and is not conducive to terminal replacement.
Use a protective sleeve with a sleeve at the terminal connection, and inject colloid into it to form a protective rubber layer, and set up a sealant layer to isolate the outside world. Use the sleeve-shaped protective sleeve and heat-shrinkage tube shape at the middle narrow end to control the colloid infusion amount to increase Reinforce the ring and booster for easy insertion and prevent tear.
Effectively save colloid use, facilitate terminal replacement, and prevent water and liquid contact through the sealant layer, improve product safety performance, ensure sufficient colloid infusion and does not affect heat shrink sealing.
Smart Images
Figure CN222191263U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of line protection, in particular to a wiring harness terminal and a sealing structure thereof. Background Art
[0002] The connection between the terminals of the traditional wiring harness is not sealed. Therefore, when the structure equipped with the terminal is flooded, water may enter the terminal, resulting in leakage and short circuit, which may easily cause safety hazards such as fire. The screws on the terminal will corrode, expand and contract due to heat, become loose naturally, and copper will oxidize, etc., resulting in poor contact and heat, and accidents.
[0003] At present, the conventional practice is to set a rectangular cover connected to the relay body on the outside of the terminal and fill the rectangular cover with glue to protect the terminal. However, in actual application, this method will consume too much glue to fill unnecessary space. At the same time, it is not conducive to the replacement of the terminal when the terminal is damaged. Therefore, a new solution is needed to solve the above problems. Utility Model Content
[0004] The utility model aims to provide a wiring harness terminal and a sealing structure thereof to solve the problems raised in the above background technology.
[0005] To achieve the above-mentioned purpose, a technical solution adopted by the utility model is: a wiring harness terminal and its sealing structure, including a terminal and a sealing structure, the sealing structure including a protective cover arranged on the terminal connection, a colloid is injected between the protective cover and the terminal connection to form a protective rubber layer, and a sealing rubber layer is arranged between the two ends of the protective cover and the part where the terminal is in contact.
[0006] Preferably, the protective sleeve is in the shape of a sleeve with narrow ends at the middle drum, and the two ends of the protective sleeve have elastic deformation properties.
[0007] Preferably, the protective sleeve is a heat shrink tube.
[0008] Preferably, sealants are fixed to the inner walls of both ends of the protective sleeve, and the sealants are isolated from the outside world by adhering a circle of tearable lining film, and the sealants and lining film together constitute a sealant layer.
[0009] Preferably, reinforcement rings are integrally formed at both ends of the protective sleeve to prevent the two ends of the protective sleeve from tearing.
[0010] Preferably, the protective cover is provided with a power assisting portion for facilitating the protective cover to be forced onto the terminal.
[0011] Preferably, both ends of the protective sleeve are turned outward to form a folded portion for preventing the lining film from falling off due to contact between the lining film and the terminal when the protective sleeve is inserted into the terminal.
[0012] The folding portion is sleeved with a fastening ring to prevent the folding portion from restoring.
[0013] Beneficial effects of the utility model: the scheme arranges the protective sleeve at the terminal connection, and effectively controls the amount of colloid injected by injecting glue into the protective sleeve, which can greatly save colloid. At the same time, it can also facilitate the replacement of the terminal when the terminal is damaged. At the same time, by providing a sealing glue layer, it can effectively prevent liquids such as water from contacting the terminal through the gap between the colloid and the wiring harness, thereby improving the safety performance of the product;
[0014] Among them, the narrow sleeve-like shape at both ends of the middle drum is conducive to the injection of colloid and can ensure that the amount of colloid covering the terminal connection is sufficient. In addition, the protective cover can be a heat shrink tube. If it is a heat shrink tube, there is no need to consider the shape of the heat shrink tube too much, and heat shrink sealing is also possible after completing the injection of glue. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the connection structure of the wiring harness terminal;
[0016] Figure 2 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 3 It is a cross-sectional view of the utility model;
[0018] Figure 4 yes Figure 3 A magnified schematic diagram of part A;
[0019] In the figure: 1. Wire harness; 2. Terminal; 3. Protective cover; 4. Folding part; 5. Sealant; 6. Lining film; 7. Reinforcement ring; 8. Power assist part; 9. Fastening ring. DETAILED DESCRIPTION
[0020] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.
[0021] Example:
[0022] See also Figure 1 , Figure 2A wiring harness 1 terminal 2 and its sealing structure, including the terminal 2 and the sealing structure, the terminal 2 is arranged on the conventional wiring harness 1, and the terminals 2 between the two wiring harnesses 1 are usually connected by welding, which requires a glue filling process to achieve its safety and stability, wherein the sealing structure includes a protective cover 3 sleeved at the connection of the terminal 2, a colloid is injected between the connection between the protective cover 3 and the terminal 2 to form a protective glue layer, and a sealing glue layer is arranged between the two ends of the protective cover 3 and the parts where the terminal 2 is attached.
[0023] Among them, see Figure 2 The protective sleeve 3 is in the shape of a sleeve with a bulge in the middle and narrow at both ends. The two ends of the protective sleeve 3 have elastic deformation properties. This shape is conducive to the injection of colloid and can ensure that the amount of colloid covering the connection of the terminal 2 is sufficient. In addition, in other embodiments, the protective sleeve 3 can be a heat shrink tube. In this case, one end of the protective sleeve 3 is heat shrunk first, and then the protective sleeve 3 as a whole can be filled with glue after the glue is injected.
[0024] Among them, see Figure 2 , Figure 3 , Figure 4 The sealant layer includes a sealant 5 and a lining film 6. The sealant 5 is arranged on the inner walls at both ends of the protective sleeve 3. The sealant 5 is isolated from the outside world by attaching a circle of tearable lining film 6. A reinforcing ring 7 is integrally formed at both ends of the protective sleeve 3 to prevent the two ends of the protective sleeve 3 from tearing. The thickness of the reinforcing ring 7 is greater than the thickness of the protective sleeve 3, and its inner wall is flush with the inner wall of the protective sleeve 3. This arrangement can effectively ensure that the protective sleeve 3 fits the wiring harness 1. The protective sleeve 3 is provided with a The protective sleeve 3 is forced to be inserted into the terminal 2 with an assisting portion 8, which is a ring body with a triangular cross-section, fixed on the outer wall of the protective sleeve 3 and also integrally formed with the protective sleeve 3. In addition, the two ends of the protective sleeve 3 are turned outward to form a folding portion 4 for preventing the lining film 6 from falling off due to the contact between the lining film 6 and the terminal 2 during the process of the protective sleeve 3 being inserted into the terminal 2. A fastening ring 9 is sleeved on the folding portion 4 to prevent the folding portion 4 from recovering from folding. The fastening ring 9 can be an annular plastic sheet, etc.
[0025] Working principle and process:
[0026] When producing the product in this solution, the protective cover 3, the power-assisting part 8, and the reinforcing ring 7 are integrally formed by a mold, and then the two ends of the protective cover 3 are turned outward to form the folded part 4, and the folded part 4 is fixed by inserting the fastening ring 9, and finally the product in this solution is obtained by coating the colloid thereon and attaching the liner film 6;
[0027] When using the product of this solution, the protective cover 3 is put on the wiring harness 1. The pushing of the assisting part 8 facilitates the putting on of the protective cover 3. After the protective cover 3 reaches the appropriate position, the lining film 6 at one end is peeled off and the fastening ring 9 is removed. The end of the protective cover 3 is folded over to complete the seal between the end and the wiring harness 1. Then, glue is poured into the protective cover 3 through the other end of the protective cover 3 to form a protective glue layer. After the glue is poured, the seal between the end and the wiring harness 1 is completed in the same way. At this point, the use of the sealing structure is completed. Of course, in other embodiments, the sealing structure can also achieve a waterproof seal between the protective cover 3 and the wiring harness 1 by only applying sealant 5 between the end of the protective cover 3 and the wiring harness 1 after the glue is poured.
[0028] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structural transformation made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, is also included in the patent protection scope of the present invention.
Claims
1. A wiring harness terminal and a sealing structure thereof, Features: The invention comprises a terminal (2) and a sealing structure, wherein the sealing structure comprises a protective sleeve (3) sleeved on the connection of the terminal (2), a colloid is injected between the connection of the protective sleeve (3) and the terminal (2) to form a protective adhesive layer, and a sealing adhesive layer is arranged between the two ends of the protective sleeve (3) and the part where the terminal (2) is in contact.
2. A wiring harness terminal and a sealing structure thereof according to claim 1, Features: The protective sleeve (3) is in the shape of a sleeve with a drum in the middle and narrow at both ends, and both ends of the protective sleeve (3) have elastic deformation properties.
3. A wiring harness terminal and a sealing structure thereof according to claim 1, Features: The protective sleeve (3) is a heat shrink tube.
4. A wiring harness terminal and a sealing structure thereof according to claim 2 or 3, Features: Sealant (5) is fixed to the inner walls of both ends of the protective sleeve (3), and the sealant (5) is isolated from the outside world by adhering to a circle of tearable lining film (6). The sealant (5) and the lining film (6) together constitute a sealant layer.
5. A wiring harness terminal and a sealing structure thereof according to claim 2, Features: Reinforcement rings (7) are integrally formed at both ends of the protective sleeve (3) to prevent the two ends of the protective sleeve (3) from tearing.
6. A wiring harness terminal and a sealing structure thereof according to claim 4, Features: The protective sleeve (3) is provided with a power assisting portion (8) which facilitates the protective sleeve (3) to be forcedly inserted onto the terminal (2).
7. A wiring harness terminal and a sealing structure thereof according to claim 4, Features: The two ends of the protective sleeve (3) are turned outward to form a folded portion (4) for preventing the lining film (6) from falling off due to contact between the lining film (6) and the terminal (2) when the protective sleeve (3) is inserted into the terminal (2).
8. A wiring harness terminal and a sealing structure thereof according to claim 7, Features: The folded portion (4) is sleeved with a fastening ring (9) for preventing the folded portion (4) from restoring.